Home / 1,131,148.68-1,560,892.38-665,928.70

Finding the Fourth Proportional to 1,131,148.68, 1,560,892.38 and 665,928.70

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Solution

The fourth proportional to 1,131,148.68, 1,560,892.38 and 665,928.70 is: 918,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,148.68 : 1,560,892.38 = 665,928.70 : x
  2. Step 2: Convert to fraction form
    1,131,148.68/1,560,892.38 = 665,928.70/x
  3. Step 3: Cross multiply
    1,131,148.68x = 1,560,892.38 × 665,928.70
  4. Step 4: Simplify right side
    1,131,148.68x = 1,039,443,033,453.31
  5. Step 5: Solve for x
    x = 1,039,443,033,453.31/1,131,148.68
  6. Step 6: Final answer
    x = 918,926.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.